title: Assement of the fluoride concentration and pH in different mouthrinses on the brazilian market.
abstract: In this study, the fluoride concentration and pH of 14 commercial brands of mouthrinses were assessed in order to compare them with the values expressed on the labels and with those established by the National Sanitary Surveillance Agency. Forty-two (42) products were obtained from three places, with different manufacturing batches. The fluoride concentration was determined in diluted solutions, using a combined specific electrode for fluoride ion (9609 BN Orion Research) and ion analyzer (290 A Orion Research). The results showed that 50% of the solutions had statistically significant differences, with higher fluoride concentrations than those expressed on the labels, and the pH ranged from 4.23 to 7.34, but only one of the products registered the pH value on its label.
authors.affiliation: Department of Pediatric and Social Dentistry, Araçatuba Dental School, Universidade Estadual Paulista.
authors.forename: Alberto Carlos Botazzo
authors.initials: AC
authors.lastname: Delbem
authors.forename: Kikue Takebayashi
authors.initials: KT
authors.lastname: Sassaki
authors.forename: Alessandra Maia de
authors.initials: AM
authors.lastname: Castro
authors.forename: Leila Maria Cesário Pereira
authors.initials: LM
authors.lastname: Pinto
authors.forename: Maurício
authors.initials: M
authors.lastname: Bergamaschi